Disclosed is a mobile communication terminal having a light guide plate for indicating the receipt of a signal. This mobile communication terminal comprises an upper frame. A light guide plate is mounted in the upper frame. The light guide plate has an opening corresponding to a region of an image display window. In addition, at least one LED is arranged adjacent to the light guide plate so as to introduce light into the light guide plate. Since the light guide plate is used for indicating the receipt of a signal, it is possible to provide a mobile communication terminal allowing a user to easily recognize a state where a signal has been received.